Gaston de schrynmakers de dormael



(Modem GASTON DE SCHRYN'MAKERS DE DORMABL, BLEGTRIGAL AGGUMULATUR.

No. 561,872. Patented June 9, 1896.

UNITED STATES PATENT @Erica GASTON DE SCHRYNMAKERS DE DORMAEL, OF BRUSSELS, BELGJUM.

ELECTRICAL ACCUMU-LATOR.

SPECIFICATION forming part of Letters Patent No. 561,872, dated June 9, 1896. Application filed May 1, 1895. Serial No. 547,791. (Model.) Patented inBelgium May 12,1891,No.109,910, July 7,1891,

No. 110,857, .my 11, 1891.110. 110,935, mi July 17,

To all wle/om, zit may concern:

Be it known that 1', GASTON DE ScHRYN- MAKERS DE DOEMAEL, a subject ofthe King of Belgium, and a resident of Brussels, Belgium, have invented certain new and useful Improvements in Electrical Accumulators, of which the following is a specification.

Patents have been granted for this invention in Belgium, No. 109,910, dated May 12, 1891, No. 110,857, dated July 7, 1891, No. 110,935, dated July 11, 1891, and No. 111,003, dated July 17, 1801; in France, No. 211,138, dated January 7, 1895; in Germany, No. 82,711, dated October 0, 1891; in Great Britain, No. 77,095, dated April 18, 1895, and in Luxemburg, No. 2,286, dated April 1S, 1895.

In my invention 1 place the negative col.

lector, whether a plate or a sheath, against the peroxid itself without any interposition of insulating material. It results from this that the negative collector serves to retain in position the positive depolarizing matter. The only precaution to be observed in this case is to prevent metallic contact between this negative collector and the central positive collector which projects from the mass of peroxid. 1 thus obtain an accumulator or secondary-battery element which is protected against shocks and in which the internal resistance is reduced to a minimum.

In the drawings, Figure 1 is a side view of the invention, and Fig. 2 .is a sectional view thereof.

The element is composed as follows: Upon both sides oi' a plate of lead, surrounded by a rigid and insulating frame of material that is not affected by acids, is spread a layer of the dcpolarizing oxid paste, so as to be flush with the surrounding frame. The plate thus coated is either inclosed in two thin very finely-perforated leaden sheaths or it is strongly compressed between two plates of spongy lead of the same dimensions as the traine, so as to constitute two boxes in which the oxid of lead is confined. According to the intensity of the current to be obtained, one or more of these elements are placed in one and the same accumulator-tank. 1f there is used, as negative element, lead, the

1891, 110.111,003; in Germany October 6,1891, No. 82,711; in France January7, 1895, 110,244,138; in England April 18, 1895, No, 77,095,

and in Luxemburg April 1S, 1895,

oxid of which is insoluble, there are j uxtaposed alternately a positive element with a frame provided with peroxid, and a plate of spongy lead, terminating the series with two negative elements of spongy lead. The system is well secured together and care is taken to form under the upper part vent-holes for the escape of gases.

It metals with soluble oxids are employed, positive elements are used mounted in their sheaths, as above described, leaving between them a space in which carbon or other suitable inaterial is introduced with the object of holding the parts in position. The cell is then charged with sulphate of Zinc, of cadmium, of tin, of copper, or other metals, and after some time all this mass, which remains spongy, forms a whole united bythe electrolytic action oi' the charge. The current from the positive poleis collected on the central collector which emerges from the positive material. The current from the negative material may be collected by ties connecting together all the sheaths or all. the spon gy plates when lead is employed.

To illustrate one form of my invention, reference is had to the accompanying drawings.

In the middle oi. a frame of ebonitc or other non-conducting material (see the drawings) a metallic netting A is arranged, both surfaces of which are covered by a layer A of oxid of lead, (P1102.) In the drawings the lead oxid has been broken away in one corner, so as to show the concealed netting A, the point of which projects outside of the oxid of lead. A netting B and B,covered with protoXid of lead, (Pb.O,) is pressed tightly against each side of this netting A, covered with oXid of lead and forming the positive electrode of the battery. These two plates B and B', which constitute the negative electrode of the battery, are connected by four lead pins D in such a manner that they must repose against the plate A without the pins D touching the said plate A, the corners of which are provided with holes for receiving the same. The frame C incloscs the plates, so that the oxid of lead cannot fall off. This is the manner in which one battery is made.

Io tive material, substantially as described.

2. An electric accumulator comprising a series of plates alternately positive and negative and the granular peroxid filling the intervals between the plates, substantially as described.

In witness whereof I have hereunto set my hand in presence of two witnesses.

GASTON DE SCHRYNMAKERS DE DORHAEL.

Titnesses ALBERT TRAIPONT, GREGORY PHELAN. 

